Information Content of Process Signals in Quality Control

Role of quality control in industry, software engineering and government. Control schemes: measurement and actuator signals. Process time constants: material balance control, production control, quality control. The concept of quality assurance and quality culture. Control system as a simple teleonomic, purposeful, system. Kolmogorov definition of teleonomic entropy. Realization restrictions in Kolmogorov entropy calculation. Shannon entropy as system uncertainty measure. Carnap entropy measure by calculating Voronoi diagram of respective signal. Introducing one-dimensional Carnap entropy measure of quantitative signals. Pragmatic question in calculating Shannon entropy: lack of data in some data classes. Problems of Carnap 2D entropy: multiple data points, split-down of signal space, data resolution and calculation duration, interpretation of obtained results. Pragmatic questions in calculating one-dimensional Carnap entropy of control signals: equivalency of entropy measures for slightly different signal shapes, cases of short decision intervals. Delta modulated 1D Carnap entropy. Calculation of measurement and actuator signal entropies of a two-stage laboratory heat exchanger. Entropy contents of quality control signals in highly automated ceramic tile plant.